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1.
Using a new data set on scientific collaboration in neuroblastoma research over a period of 41 years, we study how the structure of collaboration ties in an evolving scientific field changes over time. Guided by concepts from the sociology of knowledge and status theories, we highlight the importance of a field’s size and age for processes of stratification and segregation within it. Our findings suggest that stratification becomes stronger and diversifies as the field of neuroblastoma research expands. Moreover, we find that the occurrence of collaboration between researchers with a similar status becomes more likely as the field matures. While previous work has primarily examined established fields, our study focuses on how scientific fields change their structure over time. More broadly, our article demonstrates the potential analytical merits of adopting a dynamic and relational perspective on the developmental trajectories of organizational and cultural fields.  相似文献   

2.
Drawing on qualitative data from the civil wars in Syria and Libya since 2011, this paper seeks to build a better understanding of immobility and of displacement trajectories within conflict countries and towards neighbouring countries. The paper shows that different types of violent experiences—personal threats, generalized violence, an increasing hopelessness relating to the absence of violence in the future—trigger different exit movements across internal and external borders. Second, the analysis demonstrates that migration decisions in civil war contexts are complex processes with people balancing between strategies of how to avoid violence with strategies of how to realize broader life aspirations related to family, love, work and political change. Life aspirations often play a more important role once people move out of a situation of immediate danger and in later phases of trajectories and influence (im)mobility patterns in three different directions: stay, move (on) or return. Life aspirations, especially related to political change, outweigh perceptions of violence in some cases. Financial vulnerability can force people to stay in or return to violent contexts.  相似文献   

3.
Drawing on data from the Longitudinal Survey of Immigrants to Canada, we analyze factors shaping new immigrants’ month‐by‐month employment trajectories over their first 4 years of settlement. We treat trajectories as multidimensional and holistic entities, seeking to predict the correlates of a set of typical pathways identified via optimal matching techniques and cluster analysis. Human capital attributes and household context shapes trajectories in important ways, but patterns related to bias and discrimination are not straightforward and social ties have little impact.  相似文献   

4.
《Social Networks》2004,26(2):155-174
We present statistics for the structure and time evolution of a network constructed from user activity in an Internet community. The vastness and precise time resolution of an Internet community offers unique possibilities to monitor social network formation and dynamics. Time evolution of well-known quantities, such as clustering, mixing (degree–degree correlations), average geodesic length, degree, and reciprocity is studied. In contrast to earlier analyses of scientific collaboration networks, mixing by degree between vertices is found to be disassortative. Furthermore, both the evolutionary trajectories of the average geodesic length and of the clustering coefficients are found to have minima.  相似文献   

5.
From a Foucauldian approach, neoliberal rationality in science can be understood as a form of governance of the self that produces mechanisms through which the subject is constructed and subordinated at the same time. In this study we examine subjectivation processes and gender in centres of research created under neoliberal scientific rationality. We analyse 19 semi‐structured interviews of men and women researchers conducted in three highly competitive centres of excellence — a context rarely addressed in the literature of academic subjectivities. Following a critical discourse analysis, we show how subjectivation processes of neoliberal rationality result in two main discursive mechanisms of subjection that prevent or hinder alternative subjectivities and collective resistance, especially for women, presenting a double turn that we call: a ‘turn on oneself’ and a ‘gendered turn on oneself’. We conclude that these centres are spaces which provide the conditions of possibility to develop a scientific entrepreneurial self, excluding ‘other’ scientific subjectivities and preventing possible resistances that could emerge from them.  相似文献   

6.
In this paper we pose the question: Does the prevention of brain ageing constitute anti-ageing medicine? We answer the question by looking at recent changes in the knowledge and organisational structure of dementia research, practice and policy and investigating the boundary relations between this disease-specific field and anti-ageing medicine. Drawing on a qualitative study of the ways in which different clinical and scientific constituencies work to define, organise and negotiate the boundaries between normal and abnormal cognitive aging, we suggest that the field of dementia research, practice and policy has experienced internal diversification forming a ‘new space of representation'. We show how this space is structured by two axes: one that relates to how AD is conceptualised and another that concerns the modes of intervention or actions that will prevent the condition in individuals or populations. We argue that while these changes have blurred the epistemic boundaries between dementia and other fields of research, there are still strong institutional, economic and political factors that glue the field together.  相似文献   

7.
To what degree does criminology demonstrate the genuine presence or lack of a paradigm (i.e. theoretical-methodological consensus) to help structure its research enterprise? There are trade-offs to consider when pressing the question, such as a potential drain on efficiency in its allocation of resources, limits on its scientific credibility, and weakened institutional strength resulting from conceptual dissensus. Alternatively, an interdisciplinary field may benefit from insights continually drawn from its various parent disciplines. The present research offers a reply in two parts. The first focus relies on a content analysis of 2,109 peer-reviewed articles published in leading journals from 1951-2008 in providing a positive analysis. There is mixed evidence of methodological agreement and less on the matter of commitment to a specific theory. The second inquiry draws from reactions delivered by 17 leading criminologists on the normative question of whether the field’s a-paradigmatic status helps or harms scientific advance. An analysis of the oral histories indicates an indifference to the criticism of lacking paradigmatic uniformity as a legitimate critique and a vehement defense of porous intellectual boundaries. However, pragmatic considerations such as the potential for a diminishing need to train criminal justice undergraduates and threats to government funding may force the profession to give more consideration to the matter of its scientific bone fides.  相似文献   

8.
This paper introduces a political opportunity approach to conceptualizing the political recognition of states in the international system. The usefulness of the approach is demonstrated through a comparative analysis of the historical trajectories of Tibet, Taiwan, and Palestine in their attempts to become recognized as nation-states. I argue that political opportunities, alignment of interests, timing, and external patronage created political recognition outcomes observed for entities like Tibet, Taiwan, and Palestine. Recognition outcomes took multiple forms and included opportunities for recognition as well as whether or not a state government recognized these entities as independent states. More broadly, I argue that recognition outcomes for the cases in question are shaped by a larger political structure that I describe as the ‘opportunity structure for recognition.’  相似文献   

9.
In the workplace, people seek positive emotional experiences as well as instrumental resources while doing their work. Yet we know little about how affective micro-dynamics drive the evolution of organizational networks, influence network trajectories, and determine macro outcomes such as collective affect and overall network structure. Given the lack of theory on affective micro-dynamics and network evolution, we propose a model that includes both affective and instrumental micro-mechanisms and use simulation methods to explore evolutionary dynamics and develop new theory. The core of our model is the empirically observed tendency for people to forego the acquisition of instrumental resources to avoid a decrease in positive emotion when choosing interaction partners. We conduct “experiments” with the simulation, considering the effects of the tradeoff, dispositional affect, resource inequality, and ingroup favoritism. The results show that dispositional affect and the tradeoff have considerable effects on network trajectories, collective affect, and resource transfer. We provide new theoretical propositions about affect in organizations.  相似文献   

10.
We examined associations between hope as an internal asset that supports positive youth development, and growth trajectories of three critical consciousness components. Using five waves of data collected over the course of high school (N = 618), we modeled growth trajectories of awareness of inequity (critical reflection), a sense of agency about taking sociopolitical action (critical agency), and behaviors targeting systems of oppression (critical action). Hope was highest among those with high trajectories of critical agency and critical action. Clear associations with hope emerged at the last time point for critical reflection, suggesting that sustained growth in critical reflection is associated with hope. When supporting the critical consciousness development of youth of color, concurrent support for hope may be instrumental.  相似文献   

11.
We model the response of public sector employers to unionization using the response of public school boards to teacher unionization as an example. While it is generally believed that public sector employers pay unionized workers more than nonunion workers, there is less consensus about where the money comes from. We model two cases which are possible employer reactions to unionization: re-allocating resources among types of expenditures and modifying the way in which services are provided. The model contains a political equilibrium that determines the union’s preferences and an economic equilibrium that reflects labor market conditions. We compare the predictions of the two cases regarding the effect of unionization on wages, turnover, allocation of expenditures, and productivity. We interpret existing empirical research on public sector unionization in light of these predictions and make recommenda-tions for future empirical work.  相似文献   

12.
This paper examines differing institutional responses to and interpretation of the same scientific and medical data, and looks at the way in which policies, ostensibly based upon these interpretations, are presented to public audiences. The case study concerns the use of AZT as a prophylactic for injured health care workers. Data was collected from personal in depth interviews in two health authorities and telephone interviews with a further 35 health authorities. Observations include the fact that widely different interpretations of scientific data by scientific and medical experts is likely to be presented to the lay audience in terms of scientific certainty, based on an institutional need for certainty and consensus. Contrary to conventional perspectives which would suggest that scientific knowledge was completed in its expert arena, then applied in different settings, this analysis suggests that the scientific knowledge is socially ‘completed’ or ‘closed’ in each of the different situations in which it is interpreted into practice. Ideal models of both the science and of organisational working practice, appear to have been used as the basis of these different constructions.  相似文献   

13.
In this article, we start out from theoretical concepts about different types of migrants that feature prominently in the immigration literature. By applying latent class analysis to a unique ‘mini-panel’ data set on recent Polish and Turkish immigrants in Germany, we identify two types of migrants that are in line with the literature, namely settlers and target-earners. We label a third group that is best described as educational target-earners: ‘young learners/professionals’. Regarding variation in these groups’ early sociocultural integration patterns, results suggest that they reflect primarily differences in migrants’ intention to stay, individual resources such as education, and opportunities for integration related to newcomers’ involvement in the educational system or labour force. In sum, migrant types – though certainly more intuitively appealing and vivid than single ‘variables’ – seem to have limited explanatory power when it comes to predicting newcomers’ early integration trajectories.  相似文献   

14.
We offer an account of reading comprehension that we believe will help clarify some common conceptual confusions in the relevant literature, as well as contribute to existing functional accounts. We argue that defining texts qua texts as stimulus classes, on the one hand, and equating “comprehension” with behavior (covert or otherwise), on the other, are not useful conceptual moves, especially when behavioral settings go beyond basic literacy skills acquisition. We then analyze the structure of the contingencies that usually evoke talk of “comprehension” using techniques from analytic philosophy. We show how keeping the results of this analysis in mind can help avoid the conceptual bafflement that often arises, even among behavior analysts, when defining or assessing behavioral phenomena related to reading comprehension. Using two contrasting cases (legal texts and stories), we argue that what counts as comprehension depends, not peripherally but crucially, on the shared social practices of which texts are a part. Finally, we propose a new framework for classifying reader–text contingencies by combining two dimensions: openness of setting and embeddedness of reinforcement.  相似文献   

15.
The development of consensual science has greatly influenced the international environmental negotiation processes. This is not least the case for the Convention on Long‐range Transboundary Air Pollution (CLRTAP). Negotiators as well as regime analysts regard CLRTAP as a successful example of how scientists have succeeded in influencing international policy making through consensus‐building strategies. Drawing on Ulrich Beck's work on reflexive scientization and the concept of ‘stage management’ from the field of the Sociology of Scientific Knowledge (SSK), this paper critically analyzes the role of science in the regulation of transboundary air pollution. It discusses the consensus‐building strategies developed by scientists as well as contemporary strategies for making science matter in regulative work. It is argued that scientific credibility is crucial for attracting political and public attention, but that credibility does not necessarily have to be based on scientific consensus. The challenge for science is not so much to create consensus but to strengthen its credibility by elaborating new relations with its stakeholders.  相似文献   

16.
This article examines the dynamics of anomalies as part of scientific work. Several types of anomaly are identified: mistakes, artifacts, fraud, and discovery; and typical trajectories for artifacts are described: the establishment of suspected artifacts, changes from unacceptable to acceptable, changes in significance, visibility, and means of control. The conditions under which an anomaly changes status are examined. A detailed example of an anomaly trajectory is presented, analyzing an anomaly in neuroscience research and tracing its career from 1870 to the present.  相似文献   

17.
Public confidence in policing is receiving increasing attention from UK social scientists and policy-makers. The criminal justice system relies on legitimacy and consent to an extent unlike other public services: public support is vital if the police and other criminal justice agencies are to function both effectively and in accordance with democratic norms. Yet we know little about the forms of social perception that stand prior to public confidence and police legitimacy. Drawing on data from the 2003/2004 British Crime Survey and the 2006/2007 London Metropolitan Police Safer Neighbourhoods Survey, this paper suggests that people think about their local police in ways less to do with the risk of victimization (instrumental concerns about personal safety) and more to do with judgments of social cohesion and moral consensus (expressive concerns about neighbourhood stability, cohesion and loss of collective authority). Across England and Wales the police may not primarily be seen as providers of a narrow sense of personal security, held responsible for crime and safety. Instead the police may stand as symbolic 'moral guardians' of social stability and order, held responsible for community values and informal social controls. We also present evidence that public confidence in the London Metropolitan Police Service expresses broader social anxieties about long-term social change. We finish our paper with some thoughts on a sociological analysis of the cultural place of policing: confidence (and perhaps ultimately the legitimacy of the police) might just be wrapped up in broader public concerns about social order and moral consensus.  相似文献   

18.

This paper applies social network analysis to three case study social movement organizations based in the north of England: a local Labour Party branch, an environmental group, and a conservation group. Using a postal survey of members, we chart the extent of ties between members of these three groups, indicating how each group has its own internal social dynamics and characteristics that are related to the nature of the movement organizations themselves. We explore how the network structures interrelate with the socio-demographic structure of the membership of the three organizations, and we show there are important differences in the way that core members of the three organizations are recruited compared to those who are either peripheral or isolated. Our paper is the first to analyse the networks of whole populations of case study organizations in the UK, and can therefore be read as developing the potential of social network analysis for case study research and for understanding social movements. Analytically we argue it is important to distinguish two different types of ways that networks are important. They can be seen as offering resources for mobilization, or they can be seen as providing a means of integrating particular types of individuals into organizations. It is this latter sense that offers a more fundamental role for network analysis, and we argue that it offers an important way of developing insights from resource mobilization theory by relating them to Bourdieu's provocative arguments regarding the exclusiveness of the political field.  相似文献   

19.
Modern multilevel analysis, whereby outcomes of individuals within groups take into account group membership, has been accompanied by impressive theoretical development (e.g. Kozlowski and Klein, 2000) and sophisticated methodology (e.g. Snijders and Bosker, 2012). But typically the approach assumes that links between groups are non-existent, and interdependence among the individuals derives solely from common group membership. It is not plausible that such groups have no internal structure nor they have no links between each other. Networks provide a more complex representation of interdependence. Drawing on a small but crucial body of existing work, we present a general formulation of a multilevel network structure. We extend exponential random graph models (ERGMs) to multilevel networks, and investigate the properties of the proposed models using simulations which show that even very simple meso effects can create structure at one or both levels. We use an empirical example of a collaboration network about French cancer research elites and their affiliations (0125 and 0120) to demonstrate that a full understanding of the network structure requires the cross-level parameters. We see these as the first steps in a full elaboration for general multilevel network analysis using ERGMs.  相似文献   

20.
The ability to discriminate the trajectories of moving objects is highly adaptive and fundamental for physical and social interactions. Therefore, we could reasonably expect sensitivity to different trajectories already at birth, as a precursor of later communicative and defensive abilities. To investigate this possibility, we measured newborns' looking behavior to evaluate their ability to discriminate between visual stimuli depicting motion along different trajectories happening within the space surrounding their body. Differently from previous studies, we did not take into account defensive reactions, which may not be elicited by impending collision as newborns might not categorize approaching stimuli as possible dangers. In two experiments, we showed that newborns display a spontaneous visual preference for trajectories directed toward their body. We found this visual preference when visual stimuli depicted motion in opposite directions (approaching vs. receding) as well as when they both moved toward the peripersonal space and differed only in their specific target (i.e., the body vs. the space around it). These findings suggest that at birth human infants seem to be already equipped with visual mechanisms predisposing them to perceive their presence in the environment and to adaptively focus their attention on the peripersonal space and their bodily self.  相似文献   

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